Patents by Inventor Sang Moo Choi
Sang Moo Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210248963Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Inventors: Soo Hee OH, Chul Kyu KANG, Dong Sun LEE, Sang Moo CHOI
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Patent number: 11030943Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: GrantFiled: November 27, 2019Date of Patent: June 8, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Patent number: 10997922Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: GrantFiled: September 13, 2019Date of Patent: May 4, 2021Assignee: Samsung Display Co., Ltd.Inventors: Soo Hee Oh, Chul Kyu Kang, Dong Sun Lee, Sang Moo Choi
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Publication number: 20210126084Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.Type: ApplicationFiled: December 31, 2020Publication date: April 29, 2021Inventors: Han Sung BAE, Se Ho KIM, Sun Ja KWON, Dong Wook KIM, Jun Yong AN, Sang Moo CHOI, Jun Won CHOI
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Publication number: 20210091168Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.Type: ApplicationFiled: December 8, 2020Publication date: March 25, 2021Inventors: Sang Moo CHOI, Mi Hae KIM, Sang Won SEOK, Hwan Soo JANG, Su Jin LEE
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Patent number: 10937369Abstract: Provided herein may be a stage and an emission control driver having the same. The stage may include an output unit configured to supply a voltage of a first or second power supply to a first output terminal depending on voltages of first and second nodes, an input unit configured to control the voltages of the second node and a third node, a first signal processing unit configured to control the voltage of the first node, and supply a voltage corresponding to the first node to a second output terminal, a second signal processing unit including a second capacitor coupled between the third node and a fifth node, the second signal processing unit being configured to control the voltage of the first node, and control a potential difference between opposite terminals of the second capacitor, and a third signal processing unit configured to control the voltage of the second node.Type: GrantFiled: November 12, 2019Date of Patent: March 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Dae Hyun Kim, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Patent number: 10886358Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.Type: GrantFiled: February 3, 2020Date of Patent: January 5, 2021Assignee: Samsung Display Co., Ltd.Inventors: Han Sung Bae, Se Ho Kim, Sun Ja Kwon, Dong Wook Kim, Jun Yong An, Sang Moo Choi, Jun Won Choi
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Patent number: 10885842Abstract: A display device includes: a display panel including: a scan line, a data line, and an emission control line; a pixel including: a plurality of transistors connected to the scan line, the data line and the emission control line; and an organic light-emitting diode driven by the plurality of transistors, and a scan driver configured to: in response to an image mode being a moving image mode, generate a first mode scan signal having a turning-on voltage of a transistor for a plurality of horizontal periods; and in response to the image mode being a static image mode, generate a second mode scan signal having the turning-on voltage for a single horizontal period.Type: GrantFiled: July 16, 2019Date of Patent: January 5, 2021Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sang Moo Choi, Dongsun Lee
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Patent number: 10886359Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.Type: GrantFiled: March 9, 2020Date of Patent: January 5, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Mi Hae Kim, Sang Won Seok, Hwan Soo Jang, Su Jin Lee
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Patent number: 10878749Abstract: A display device includes a plurality of first pixels coupled to first scan lines and data lines and a plurality of second pixels coupled to second scan lines and the data lines. Each of the first scan lines receives 2i first scan signals during a frame period. Each of the second scan lines receives i second scan signals during the frame period, where i is a natural number.Type: GrantFiled: June 13, 2017Date of Patent: December 29, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Sic Lee, Seung Yeon Cho, Sang Moo Choi
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Patent number: 10804350Abstract: An organic light-emitting display device including: pixels disposed on each of horizontal lines, each of the pixels includes an organic light-emitting diode, and an auxiliary transistor coupled between an anode electrode of the organic light-emitting diode and an auxiliary power source; and at least one reference transistor disposed on each of the horizontal lines and coupled between a reference power source and at least one of the pixels. The auxiliary transistor and the reference transistor may be simultaneously turned on.Type: GrantFiled: April 17, 2018Date of Patent: October 13, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Seung Kyu Lee
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Patent number: 10796642Abstract: A display device includes first pixels in a first pixel area, a first scan driver configured to supply first scan signals to first scan lines, second pixels in a second pixel area, a second scan driver configured to supply second scan signals to second scan lines, third pixels in a third pixel area, a third scan driver configured to supply third scan signals to third scan lines, and a timing controller configured to supply a first start signal to the first scan driver, a second start signal to the second scan driver, and a third start signal to the third scan driver, wherein an order in which the first, second, and third start signal are supplied in a first mode, and an order in which the first, second, and third start signal are supplied in a second mode that is different from the first mode, are different from each other.Type: GrantFiled: January 8, 2018Date of Patent: October 6, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Min Woo Byun, Chae Han Hyun, Min Kyu Woo, Jae Du Noh, Jae Sic Lee, Seung Yeon Cho
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Patent number: 10762850Abstract: A display device includes a display area to display an image in different areas, the display area including first, second, and third pixel areas that are sequentially arranged, first pixels and first scan lines in the first pixel area, second pixels and second scan lines in the second pixel area, third pixels and third scan lines in the third pixel area, a first scan driver to drive the first scan lines, a second scan driver to drive the second scan lines, and a third scan driver to drive the third scan lines, wherein the second scan lines are sequentially driven, and the third scan lines are driven for a first period during which the second scan lines are driven, and the first scan lines are driven by the first scan driver for a second period, which is after the first period, during which the second scan lines are driven.Type: GrantFiled: December 28, 2017Date of Patent: September 1, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Jae Du Noh, Seung Yeon Cho
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Patent number: 10720101Abstract: A display device includes pixels, an auxiliary pixel, a controller, and an emission driver. The pixels are coupled to data lines and emission control lines. The auxiliary pixel is coupled to an auxiliary data line and auxiliary emission control lines. The controller is configured to measure an auxiliary current supplied from the auxiliary pixel through an auxiliary line, and to control a width of an emission start signal based on an accumulation amount of the auxiliary current. The emission driver is configured to, based on the emission start signal, supply emission control signals to the pixels and the auxiliary pixel through the emission control lines and the auxiliary emission control lines.Type: GrantFiled: July 17, 2018Date of Patent: July 21, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sang Moo Choi, Jin Woo Park, Dong Sun Lee
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Publication number: 20200212161Abstract: An organic light emitting display device includes a substrate having a display area and a peripheral area; a pad disposed on the substrate in the peripheral area; a first conductive pattern disposed on one side of the display area in the peripheral area and electrically connected to the pad; a second conductive pattern disposed on the substrate in the peripheral area and disposed on an opposite side of the first conductive pattern; a first connection electrode disposed on the first conductive pattern in the peripheral area and electrically connected to the first conductive pattern; and a second connection electrode disposed on the second conductive pattern in the peripheral area and electrically connected to the second conductive pattern. A cathode electrode of a light emitting diode is disposed on the first and second connection electrodes and electrically connected to the first and second connection electrodes.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Sang Moo CHOI, Mi Hae KIM, Sang Won SEOK, Hwan Soo JANG, Su Jin LEE
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Publication number: 20200211467Abstract: A stage of a scan driver for a display device, the stage includes: an output unit to output to an output terminal either a signal supplied to a first clock terminal corresponding to voltage of a first driving node or a voltage of a second power source corresponding to voltage of a second driving node; an input unit to control the voltage of the first driving node corresponding to signals supplied to a first input terminal, and the input unit to control the voltage of the second driving node corresponding to signals supplied to a second input terminal and a second clock terminal; a first signal processor including a second capacitor coupled between the second driving node and a second node, the first signal processor to control the voltage of the second driving node corresponding to signals supplied to a third clock terminal and a fourth clock terminal, the first signal processor to control a potential difference between both ends of the second capacitor corresponding to the signal supplied to the fourth clockType: ApplicationFiled: December 9, 2019Publication date: July 2, 2020Inventors: Chul Kyu KANG, Sung Hwan KIM, Soo Hee OH, Dong Sun LEE, Sang Moo CHOI
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Patent number: 10692427Abstract: A pixel includes: an organic light emitting diode; a first transistor having a second electrode connected with an anode electrode of the organic light emitting diode and controlling the amount of current supplied to the organic light emitting diode; a second transistor connected between a data line and a second node and turned on when a scan signal is supplied to a scan line; a third transistor connected between a gate electrode and a second electrode of the first transistor and having a turn-on time partially overlapping the turn-on time of the second transistor; a fifth transistor connected between the second node and a power line receiving first power and having a turn-on time not overlapping the turn-on time of the second transistor; and a storage capacitor connected between a gate electrode of the first transistor and the second node.Type: GrantFiled: November 22, 2016Date of Patent: June 23, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Sang-Moo Choi
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Publication number: 20200175913Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: ApplicationFiled: November 27, 2019Publication date: June 4, 2020Inventors: Chul Kyu KANG, Sung Hwan KIM, Soo Hee OH, Dong Sun LEE, Sang Moo CHOI
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Publication number: 20200176544Abstract: A display device, includes: a display area including an upper side, a lower side, a left side, a right side, and inclined corner portions where the upper, lower, left, and right sides meet; a demultiplexing circuit unit adjacent to the lower side of the display area and the corner portion connected thereto; and a scan transmission line which extends toward the display area from an outer side of the left side and overlaps with the demultiplexing circuit unit outside the corner portion, wherein the demultiplexing circuit unit includes a demultiplexer transistor, and the scan transmission line is formed of a different conductive layer from an electrode of a demultiplexer transistor.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Inventors: Han Sung BAE, Se Ho KIM, Sun Ja KWON, Dong Wook KIM, Jun Yong AN, Sang Moo CHOI, Jun Won CHOI
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Publication number: 20200168160Abstract: A stage and a scan driver including the same for supplying a scan signal using a stage formed of P-type transistors to prevent output of an unwanted noise in a period where the scan signal is not supplied.Type: ApplicationFiled: September 13, 2019Publication date: May 28, 2020Inventors: Soo Hee OH, Chul Kyu KANG, Dong Sun LEE, Sang Moo CHOI